High severity · published Sep 21, 2021
CVE-2021-41531
NLnet Labs Routinator prior to 0.10.0 produces invalid RTR payload if an RPKI CA uses too large values in the max-length parameter in a ROA
7.5
CVSS
0.9%
EPSS
No
On KEV
Description
NLnet Labs Routinator prior to 0.10.0 produces invalid RTR payload if an RPKI CA uses too large values in the max-length parameter in a ROA. This will lead to RTR clients such as routers to reject the RPKI data set, effectively disabling Route Origin Validation.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RO
Routinator · Nlnetlabs
before 0.10.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41531
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41531
Vendor Advisory
https://www.nlnetlabs.nl/downloads/routinator/CVE-2021-41531.txt
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